Specifications of TIMKEN Bearing 28980 - 28921-B
Specifications
| Series |
28900 |
| Cone Part Number |
28980 |
| Cup Part Number |
28921-B |
| Design Unit |
Inch |
| Bearing Weight |
1.7 lb0.70 Kg |
| Cage Material |
Stamped Steel |
Dimensions
| d – Bore |
2.3613 in59.977 mm |
| D – Cup Outer Diameter |
3.937 in100 mm |
| D1 – Flange Outer Diameter |
4.0930 in103.962 mm |
| B – Cone Width |
1.0000 in25.400 mm |
| C – Cup Width |
0.7813 in19.845 mm |
| C1 – Cup Flange Width |
0.1563 in3.970 mm |
| T1 – Bearing Width to Flange |
0.375 in9.525 mm |
Abutment and Fillet Dimensions
| R – Cone Backface “To Clear” Radius1 |
0.14 in3.6 mm |
| r – Cup Backface “To Clear” Radius2 |
0.130 in3.3 mm |
| da – Cone Frontface Backing Diameter |
2.64 in67 mm |
| db – Cone Backface Backing Diameter |
2.87 in73 mm |
| Da – Cup Frontface Backing Diameter |
3.90 in98.04 mm |
| Ab – Cage-Cone Frontface Clearance |
0.09 in2.3 mm |
| Aa – Cage-Cone Backface Clearance |
0.05 in1.3 mm |
| a – Effective Center Location3 |
-0.1 in-2.5 mm |
